diff --git a/patches/README.md b/patches/README.md
index 0d8a990738e7eb9303ba4e7d9621432412546265..d4d364eec863040abb31f427c9ccfd13010f33dc 100644
--- a/patches/README.md
+++ b/patches/README.md
@@ -21,7 +21,7 @@ - `builds.sr.ht` artifact upload — workers POST job artifacts as a stream.
 
 **Fix.** Set both `RequestChecksumCalculation` and `ResponseChecksumValidation` to `WhenRequired`, so the SDK only checksums when the protocol mandates it. This restores pre-SDK-v1.30 behavior and is the workaround Amazon documents for non-AWS S3 backends (Garage/Ceph/Minio) where strict checksum negotiation is also unreliable.
 
-**Status.** Applied in phoebe-lab production; **not upstreamed yet**.
+**Status.** Applied in phoebe-lab production; **not upstreamed yet**. Also lives as commit `c2c2f3848fa9a88d96952ff08f886483f8b9d1f7` on `master` of the fork `git.srht.bigb.es/~bigbes/core-go` (branched from upstream `71b2787`), pinned via a `replace` directive in the `go.bigb.es/sourcehut-compare` service.
 
 **Verify it still applies cleanly:**